ComfyUI Fisheye Transform Nodes

Custom nodes for handling fisheye camera distortion in ComfyUI inpainting workflows.

Problem Solved

When inpainting fisheye images, generative models produce objects with incorrect perspective because they're trained on rectilinear (flat) images. This node pack provides:

1. Undistort fisheye → flat image (before inpainting)
2. Redistort flat → fisheye (after inpainting)

Installation

Copy this folder to your ComfyUI custom_nodes directory:

ComfyUI/custom_nodes/ComfyUI-FisheyeTransform/

Restart ComfyUI.

Nodes

🐟 Fisheye Undistort

Converts fisheye image to rectilinear. Use before inpainting.

Inputs:

• image: Fisheye IMAGE
• mask: Optional MASK (will be transformed too)
• strength: Distortion strength (0.0-3.0, default 1.0)
• zoom: Output zoom level (0.5-2.0, default 1.0)

Outputs:

• image: Undistorted IMAGE
• mask: Undistorted MASK
• params: Parameters for redistortion

🐟 Fisheye Redistort

Restores fisheye distortion. Use after inpainting.

Inputs:

• image: Flat IMAGE (inpainted result)
• params: FISHEYE_PARAMS from Undistort node
• mask: Optional MASK

Outputs:

• image: Fisheye IMAGE
• mask: Fisheye MASK

🐟 Fisheye Strength Estimate

Estimates distortion strength from image (heuristic).

Tips

• Start with strength=1.0 and adjust based on your camera
• If edges look stretched after undistort, increase zoom
• Korean street cameras typically use strength around 0.8-1.2